package com.cheneylo.bigevent.interceptors;


import com.cheneylo.bigevent.pojo.Result;
import com.cheneylo.bigevent.utils.JwtUtil;
import com.cheneylo.bigevent.utils.ThreadLocalUtil;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.Map;
@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response,Object handler) throws Exception {
    //令牌验证
    String token = request.getHeader("Authorization");
    //验证token
    try {
        Map<String, Object> claims = JwtUtil.parseToken(token);

        //把业务数据存储到ThreadLcal中
        ThreadLocalUtil.set(claims);
        //放行
        return true;

    } catch (Exception e) {
        //http响应状态为401
        response.setStatus(401);
        //不放行
        return false;
    }
}

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        //清空ThreadLocal中的数据
        ThreadLocalUtil.remove();
    }
}
